#include<stdio.h>
int main(){
	printf("tracing stop!\n");
	printf("tracing stop!\n");
	printf("tracing stop!\n");
	printf("tracing stop!\n");
	printf("tracing stop!\n");
	printf("tracing stop!\n");
	printf("tracing stop!\n");
	printf("tracing stop!\n");
	printf("tracing stop!\n");
	printf("tracing stop!\n");
	printf("tracing stop!\n");
	printf("tracing stop!\n");
	printf("tracing stop!\n");
	printf("tracing stop!\n");
	printf("tracing stop!\n");
	printf("tracing stop!\n");
	printf("tracing stop!\n");
	printf("tracing stop!\n");
}

